In this bold and pioneering interdisciplinary study, experts on SLA research, computational analysis and statistics collaborate to try to identify the L1 background of non-native writers. The result is a most impressive work which will take the field of crosslinguistic studies a long way forward. A MUST for all SLA researchers! -- Håkan Ringbom, Emeritus Professor, Åbo Akademi University, Finland This is an articulate, comprehensive, and timely volume on a fascinating yet largely underexplored area. Jarvis and Crossley have produced an impressive collection of research-based evidence on language transfer using a corpus-based approach. The volume is a must-have for students, scholars, and practitioners interested in language transfer, corpus linguistics, forensic linguistics, text classification, second language writing, error analysis, and language assessment. -- Pavel Trofimovich, Concordia University, Canada This book indeed opens a new path in the study of language transfer. The investigations brought together here combine the strengths of earlier work on transfer with those of two other fields, computational linguistics and corpus research, which have much to offer students and researchers interested in second language acquisition and multilingualism. There can be little doubt that the tools used in this seminal work will continue to offer important insights for a long time to come. -- Terence Odlin, Ohio State University, USA